Pith Number

pith:RQF2TUFT

pith:2016:RQF2TUFTFBRGTFRX7SWUAOLTSN

not attested not anchored not stored refs pending

Spiral-driven accretion in protoplanetary discs - II Self-similar solutions

Geoffroy Lesur, Patrick Hennebelle, S\'ebastien Fromang

arxiv:1602.01721 v1 · 2016-02-04 · astro-ph.GA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RQF2TUFTFBRGTFRX7SWUAOLTSN}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T01:15:42.566821Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8c0ba9d0b32862699637fcad403973937a937761167da96ea3561fec14f39ae6

Aliases

arxiv: 1602.01721 · arxiv_version: 1602.01721v1 · doi: 10.48550/arxiv.1602.01721 · pith_short_12: RQF2TUFTFBRG · pith_short_16: RQF2TUFTFBRGTFRX · pith_short_8: RQF2TUFT

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/RQF2TUFTFBRGTFRX7SWUAOLTSN \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 8c0ba9d0b32862699637fcad403973937a937761167da96ea3561fec14f39ae6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "97efa447e7e1bdcbe54ed070be7a5ccde8d4f6034717dae84eb8a4ad0ab6c7d4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2016-02-04T15:53:49Z",
    "title_canon_sha256": "db489496c2dc45d22c042906acfaeb5f7a5f5a08ddf74cdd3ed7d83a9230d152"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.01721",
    "kind": "arxiv",
    "version": 1
  }
}